JP2004336915A - Magnetic circuit control device of double shaft multilayer motor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a magnetic circuit control device for a double-shaft multilayer motor capable of synthetically improving motor efficiency and motor performance by making the magnetic circuit as a variable structure and controlling the magnetic circuit suited with operation condition. <P>SOLUTION: An inner rotor IR and an outer rotor OR are arranged through a stator S in concentric circle. In the double shaft multilayer motor M, separated stator teeth 41 with coils 42 of which the coils 42 are wound on the stator teeth 41 constituted by laminated steel plates is arranged with the same pitches on the circumference where the center is the motor rotating shaft. The stator S is provided with a magnetic circuit control means for controlling the outer rotor side space and the inner rotor side space of the abutting stator teeth 41, 41 of the separated stator teeth 41with the coils 42 corresponding to the operation condition. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention belongs to the technical field of a magnetic circuit control device for a multi-axis multilayer motor applied to a hybrid drive unit or the like.
[0002]
[Prior art]
Conventionally, a stator of a multi-axis multi-layer motor in which an inner rotor and an outer rotor are arranged concentrically with a stator interposed therebetween has a structure in which a divided stator tooth having a coil wound around a stator tooth formed of laminated steel sheets is a motor. They are arranged at equal pitches on a circumference around the rotation axis (for example, Patent Document 1).
[0003]
[Patent Document 1]
JP-A-2001-169483.
[0004]
[Problems to be solved by the invention]
However, in a conventional multi-axis multilayer motor, two sets of inner rotors and outer rotors are freely controlled by applying a composite current to one set of stator teeth coils. Since the magnetic circuit is shared as two motors, they affect each other. The magnetic circuit is designed in consideration of a balance between the two, because one of the magnetic circuits has a structure in which the other magnetic circuit (including the leakage flux) is actively used. For this reason, compared to the idealized shape for each motor, the design is compromised, and the performance as a motor / generator may be reduced.
[0005]
The present invention has been made in view of the above-described problem. By controlling the magnetic circuit to have a variable structure and a magnetic circuit in accordance with an operating condition, it is possible to improve motor efficiency and motor performance comprehensively. An object of the present invention is to provide a magnetic circuit control device for a multi-axis multilayer motor that can be used.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, in the present invention,
The inner rotor and the outer rotor are arranged concentrically with the stator interposed therebetween, and the stator has a coiled stator tooth obtained by winding a coil around a stator tooth formed of a laminated steel sheet, with the motor rotating shaft as a center. In a multi-axis multi-layer motor arranged at equal pitch on the circumference,
Magnetic circuit control means for controlling at least one of the outer rotor-side gap and the inner rotor-side gap of the adjacent stator teeth among the divided stator teeth with coils is provided in accordance with an operating condition.
[0007]
Here, the “magnetic circuit control means” is disposed, for example, in a gap between adjacent stator teeth, and controls the amount of leakage magnetic flux of the stator teeth by making the amount of overlap with the stator teeth in the rotation axis direction variable. A sliding member or a rotating member that is arranged in a gap between adjacent stator teeth and controls the amount of leakage magnetic flux of the stator teeth by making the positional relationship between the adjacent stator teeth and the high magnetic permeability portion variable, An electromagnet, which is disposed in a gap between stator teeth and has a bypass coil wound around a laminated steel plate with a rotor tangential direction as an axis, or a permanent magnet, which is disposed in a gap between adjacent stator teeth and is rotatably provided, and is adjacent to each other Means for controlling the magnetic path of the stator teeth.
[0008]
【The invention's effect】
Therefore, in the magnetic circuit control device for a multi-axis multilayer motor of the present invention, the magnetic circuit has a variable structure, and the magnetic circuit control means controls the magnetic circuit in accordance with the driving situation, thereby improving the motor efficiency and motor efficiency. Motor performance can be improved comprehensively.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments for realizing a magnetic circuit control device for a multi-axis multilayer motor of the present invention will be described based on first to fourth examples shown in the drawings.
[0010]
(First embodiment)
First, the configuration will be described.
[0011]
[Overall configuration of hybrid drive unit]
FIG. 1 is an overall view of a hybrid drive unit to which the multi-shaft multi-layer motor of the first embodiment is applied. In FIG. 1, E is an engine, M is a multi-shaft multi-layer motor, G is a Ravigneaux type compound planetary gear train, D Denotes a drive output mechanism, 1 denotes a motor cover, 2 denotes a motor case, 3 denotes a gear housing, and 4 denotes a front cover.
[0012]
The engine E is a main power source of the hybrid drive unit. The engine output shaft 5 is connected to the second ring gear R2 of the Ravigneaux-type compound planetary gear train G via a rotation fluctuation absorbing damper 6 and a multi-plate clutch 7. ing.
[0013]
The multi-shaft multi-layer motor M is a single motor in appearance, but is a sub power source having two motor generator functions. The multi-axis multi-layer motor M is fixed to the motor case 2 and has a stator S as a fixed armature wound with a coil, an inner rotor IR disposed inside the stator S and having a permanent magnet embedded therein, The outer rotor OR having the permanent magnets embedded therein is disposed outside of the outer rotor S and coaxially arranged in three layers. A first motor hollow shaft 8 fixed to the inner rotor IR is connected to a first sun gear S1 of a Ravigneaux type compound planetary gear train G, and a second motor shaft 9 fixed to the outer rotor OR is a Ravigneaux type compound planetary gear. It is connected to the second sun gear S2 in the row G.
[0014]
The Ravigneaux type compound planetary gear train G is a hybrid transmission having a continuously variable transmission function of changing the speed ratio steplessly by controlling two motor rotation speeds. The Ravigneaux type compound planetary gear train G includes a common carrier C that supports a first pinion P1 and a second pinion P2 that mesh with each other, a first sun gear S1 that meshes with the first pinion P1, and a second sun gear that meshes with the second pinion P2. S2, a first ring gear R1 that meshes with the first pinion P1, and a second ring gear R2 that meshes with the second pinion P2. A multiple disc brake 10 is interposed between the first ring gear R1 and the gear housing 3. An output gear 11 is connected to the common carrier C.
[0015]
The drive output mechanism D includes an output gear 11, a first counter gear 12, a second counter gear 13, a drive gear 14, a differential 15, and drive shafts 16L and 16R. The output rotation and output torque from the output gear 11 pass through the first counter gear 12, the second counter gear 13, the drive gear 14, and the differential 15, and are transmitted from the drive shafts 16L, 16R to drive wheels (not shown). You.
[0016]
That is, the hybrid drive unit connects the second ring gear R2 and the engine output shaft 5 via the multi-plate clutch 7, connects the first sun gear S1 and the first motor hollow shaft 8, and connects the second sun gear S2 And the second motor shaft 9 and an output gear 11 to the common carrier C.
[0017]
[Configuration of hybrid transmission]
FIG. 2 is a longitudinal sectional view showing the hybrid transmission. In FIG. 2, reference numeral 2 denotes a motor case, 3 denotes a gear housing, and 4 denotes a front cover. A Ravigneaux type compound planetary gear train G and a drive output mechanism D are arranged in a gear chamber 30 surrounded by these.
[0018]
The second ring gear R2 of the Ravigneaux type compound planetary gear train G is rotationally driven from the engine E when the multi-plate clutch 7 is engaged through the rotation fluctuation absorbing flywheel damper 6, the transmission input shaft 31, and the clutch drum 32. Torque is input.
[0019]
A first motor hollow shaft 8 is spline-coupled to a first sun gear S1 of the Ravigneaux type compound planetary gear train G, and a first torque and a first torque are transmitted from an inner rotor IR of the multi-shaft multilayer motor M according to a determined motor operating point. The first rotation speed is input.
[0020]
A second motor shaft 9 is spline-coupled to the second sun gear S2 of the Ravigneaux type compound planetary gear train G, and a second torque and a second torque are transmitted from the outer rotor OR of the multi-shaft multilayer motor M according to a determined motor operating point. Two revolutions are input.
[0021]
A multi-plate brake 10 is provided between the first ring gear R1 of the Ravigneaux-type compound planetary gear train G and the gear housing 3, and when the multi-plate brake 10 is fastened at the time of starting or the like, the first ring gear R1 is turned off. Stop.
[0022]
An output gear 11 rotatably supported on a stator shaft 48 via a bearing is spline-coupled to a common carrier C of the Ravigneaux type compound planetary gear train G.
[0023]
The drive output mechanism D includes a first counter gear 12 meshing with the output gear 11, a second counter gear 13 provided on a shaft portion of the first counter gear 12, and a drive gear 14 meshing with the second counter gear 13. And The final reduction ratio is determined by the ratio of the number of teeth between the second counter gear 13 and the drive gear 14.
[0024]
An engagement pressure is supplied to a clutch piston 33 of the multi-plate clutch 7 by a clutch pressure oil passage 34 formed in the front cover 4. Further, a fastening pressure is supplied to a brake piston 35 of the multi-plate brake 10 through a brake pressure oil passage 36 formed in the front cover 4. The clutch piston 33 and the brake piston 35 are disposed inside the front cover 4 at an inner peripheral position, and the brake piston 35 is disposed at an outer peripheral position.
[0025]
A shaft oil passage 37 is formed in the transmission input shaft 31, and lubricating oil is supplied to the shaft oil passage 37 via a lubricating oil passage 38 formed in the front cover 4. You.
[0026]
[Configuration of multi-axis multi-layer motor]
FIG. 3 is a longitudinal side view showing a multi-axis multilayer motor M to which the magnetic circuit control device of the first embodiment is applied, and FIG. 4 shows a multi-axis multilayer motor M to which the magnetic circuit control device of the first embodiment is applied. FIG. 5 is a partial longitudinal front view, FIG. 5 is a view of the stator of the first embodiment viewed from the rear side, and FIG. 6 is an explanatory diagram showing an example of a composite current applied to the stator coil of the multi-axis multilayer motor M. In FIG. 3, reference numeral 1 denotes a motor cover, and 2 denotes a motor case. A multi-axis multilayer motor M including an inner rotor IR, a stator S, and an outer rotor OR is arranged in a motor chamber 17 surrounded by the motor cover. I have.
[0027]
The inner rotor surface of the inner rotor IR is fixed to the stepped shaft end of the first motor hollow shaft 8 by press fitting (or shrink fitting). As shown in FIG. 4, the inner rotor IR has twelve inner rotor magnets 21 buried in the axial direction with respect to the rotor base 20 in consideration of magnetic flux formation. However, two pairs are arranged in a V-shape to show the same polarity, and are three-pole pairs.
[0028]
The stator S includes a stator tooth 41 in which a stator plate 40 made of a steel plate is laminated in an axial direction, a coil 42 wound around the stator tooth 41, a cooling refrigerant passage 43 penetrating the stator S in an axial direction, and an inner It has a side bolt / nut 44, an outer side bolt / nut 45, and a resin mold part 46. The front end of the stator S is fixed to the motor case 2 by bolts 87 via the front end plate 47 and the stator shaft 48. In FIG. 4, reference numeral 17 denotes an outer rotor side sliding member, and reference numeral 18 denotes an inner rotor side sliding member.
[0029]
The coil 42 has 18 coils and is arranged on the circumference while repeating a six-phase coil three times as shown in FIG. For the six-phase coil 42, an inverter (not shown) passes through a power supply connection terminal 50, a bus bar radial laminate 51, a power supply connector 52, and a bus bar axial laminate 53, for example, as shown in FIG. A composite current is applied. This composite current is a composite of a three-phase AC and a six-phase AC for driving the outer rotor OR and the inner rotor IR.
[0030]
The outer rotor surface of the outer rotor OR is fixed to the outer rotor case 62 by brazing or bonding. A front connection case 63 is fixed to the front side of the outer rotor case 62, and a rear connection case 64 is fixed to the rear side. The second motor shaft 9 is spline-connected to the rear connection case 64. As shown in FIG. 3, twelve outer rotor magnets 61 are arranged in the outer rotor OR in an axial direction at both end positions via a space in consideration of magnetic flux formation with respect to the rotor base 60. The outer rotor magnet 61 is different from the inner rotor magnet 21 in polarity one by one and forms a six-pole pair.
[0031]
In FIG. 3, reference numerals 80 and 81 denote a pair of outer rotor support bearings that support the outer rotor 6 on the motor case 2 and the motor cover 1. 82 is an inner rotor support bearing for supporting the inner rotor IR on the motor case 2, 83 is a stator support bearing for supporting the stator S with respect to the outer rotor OR, and 84 is between the first motor hollow shaft 8 and the second motor shaft 9. It is an intermediate bearing interposed in. In FIG. 3, reference numeral 85 denotes an inner rotor resolver for detecting the rotational position of the inner rotor IR, and reference numeral 86 denotes an outer rotor resolver for detecting the rotational position of the outer rotor OR.
[0032]
[Magnetic circuit controller]
FIG. 7 is a control system diagram showing the magnetic circuit control device of the first embodiment, and FIG. 8 is a diagram showing the flow of leakage magnetic flux depending on the positional relationship between the stator teeth and the sliding members of the magnetic circuit control device of the first embodiment. FIG. 9 is an enlarged view of a portion A of FIG. 9, FIG. 9 is a view showing a cable mechanism and an actuator for driving a sliding member of the magnetic circuit control device of the first embodiment, and FIG. 10 is a diagram showing a stator tooth and a slide of the magnetic circuit control device of the first embodiment. FIG. 11 is a diagram showing Example 1 of a moving member, and FIG. 11 is a diagram showing Example 2 of a stator tooth and a sliding member of the magnetic circuit control device of the first embodiment.
[0033]
An inner rotor IR and an outer rotor OR are concentrically arranged with the stator S interposed therebetween. The stator S is a stator tooth 41 with a coil 42 divided by winding a coil 42 around a stator tooth 41 made of a laminated steel plate. However, in the multi-shaft multi-layer motor M which is arranged at equal pitches on the circumference around the motor rotation axis, as shown in FIG. Magnetic circuit control means is provided for controlling the outer rotor-side gap and the inner rotor-side gap between the teeth 41, 41 in accordance with the operating conditions.
[0034]
The magnetic circuit control means is disposed at an outer rotor side gap between the adjacent stator teeth 41, 41, and is connected to the outer rotor side sliding member 17 (outer rotor side movable portion) driven by the outer rotor side actuator 19. The inner rotor side sliding member 18 (inner rotor side movable portion), which is disposed at the inner rotor side gap position of the stator teeth 41 and 41 to be driven by the inner rotor side actuator 20, and the outer rotor side sliding member 17, A motor controller 21 (magnetic circuit control unit) that outputs a control command of the amount of leakage magnetic flux to the stator teeth 41 of the inner rotor side sliding member 18 to the outer rotor side actuator 19 and the inner rotor side actuator 20. Have been.
[0035]
The outer rotor side sliding member 17 is disposed so as to be slidable in the rotation axis direction in the outer rotor side gap between the adjacent stator teeth 41, 41 and is made of a high magnetic permeability material such as a laminated steel plate.
[0036]
The inner-rotor-side sliding member 18 is slidably disposed in the inner-rotor-side gap between the adjacent stator teeth 41, 41 in the direction of the rotation axis, and is made of a highly magnetically permeable material such as a laminated steel plate.
[0037]
The motor controller 21 exchanges information with the hybrid controller 22 and changes the amount of overlap between the sliding members 17 and 18 and the stator teeth 41 and 41 in the rotation axis direction based on input information and the like. The amount of leakage magnetic flux of the teeth 41 is controlled.
That is, as shown in FIG. 8A, the amount of leakage magnetic flux is increased by increasing the amount of overlap between the sliding members 17, 18 and the stator teeth 41, 41, and conversely, as shown in FIG. As shown, the amount of leakage magnetic flux is reduced by reducing the amount of overlap between the sliding members 17, 18 and the stator teeth 41, 41.
[0038]
The outer rotor-side actuator 19 and the inner rotor-side actuator 20 are, as shown in FIG. 9, an operation cable having one end fixed to both sliding members 17 and 18 that move linearly in the direction of the rotation axis along a sliding guide 23. The two sliding members 17, 18 are driven by a hydraulic pressure, a motor, or a solenoid.
[0039]
As shown in FIGS. 10 and 11, the outer rotor side sliding member 17 and the inner rotor side sliding member 18 have a groove fitting structure with the stator teeth 41, 41, and the stator teeth 41, 41 The sliding contact portion 25 for reducing the sliding resistance is interposed at the contact position.
[0040]
The sliding contact portion 25 uses an insulating and low magnetic permeability material such as a resin. As shown in FIG. 10, the sliding contact portion 25 may be provided on the fitting groove side of the stator teeth 41, 41. Alternatively, as shown in FIG. 11, a sliding contact portion 25 may be provided so as to cover the outer periphery of the sliding members 17 and 18.
[0041]
Next, the operation will be described.
[0042]
[Basic function of multi-axis multi-layer motor]
By employing a multi-axis multilayer motor M in which two magnetic lines of force, the outer rotor magnetic field lines and the inner rotor magnetic field lines, are formed with two rotors and one stator, the coil 42 and a coil inverter (not shown) can be replaced by two inner rotor IRs and an outer rotor. Can be shared for OR. Then, by applying to the single coil 42 a composite current obtained by superimposing a three-phase alternating current on the inner rotor IR and a six-phase alternating current on the outer rotor OR, the two rotors IR and OR are independently controlled. can do.
[0043]
Therefore, although it is a single multi-axis multilayer motor M in appearance, it can be used as a combination of different or similar functions of the motor function and the generator function. For example, it has a motor having a rotor and a stator, and a motor having a rotor and a stator. Compared to the case where two generators are provided, the size is significantly reduced, which is advantageous in terms of space, cost and weight, and the loss due to current (copper loss and switching loss) can be prevented by using a common coil. .
[0044]
In addition, the present invention has a high degree of freedom of selection such that not only the usage of (motor + generator) but also the usage of (motor + motor) and (generator + generator) can be performed only by the composite current control. When adopted as a drive source for a hybrid vehicle as in the embodiment, the most effective or efficient combination can be selected from these many options according to the vehicle state.
[0045]
[Magnetic circuit control action]
First, as shown in FIG. 12, the magnetic flux for driving the outer rotor OR is designed on the assumption that the magnetic flux passes through a gap (leakage magnetic path) between the stator teeth 41, 41 on the inner rotor IR side. On the other hand, the magnetic flux for driving the inner rotor IR is designed on the assumption that the magnetic flux passes through the gap (leakage magnetic path) between the stator teeth 41 on the outer rotor OR side.
[0046]
Therefore, as shown in (1) to (4) in FIG. 13, the motor controller 21 determines which of the inner rotor IR and the outer row OR has a large torque (for example, estimated by a motor drive current) or a large input / output rotor. The corresponding sliding members 17 and 18 are controlled to the side where the leakage magnetic flux is stopped, and the movable part corresponding to the rotor with small torque or input / output is controlled to the side where the leakage magnetic flux flows.
[0047]
Therefore, the magnetic circuit is controlled by giving priority to the rotor with the larger torque and input / output. Even if the leakage flux of the other rotor increases and the efficiency decreases, the overall high-efficiency operation range is maintained. This will increase the motor characteristics.
[0048]
Further, as shown by (5) and (6) in FIG. 13, the motor controller 21 connects the outer sliding member 17 and the inner sliding member 18 to the side for stopping the leakage magnetic flux in the normal operation range of the motor. In the idling region of the motor, the outer sliding member 17 and the inner sliding member 18 are on the side where the leakage magnetic flux flows.
[0049]
Therefore, in the normal operation range, the leakage flux is reduced without giving priority to one of the inner rotor IR and the outer row OR, and the motor efficiency on the inner rotor IR side and the motor efficiency on the outer rotor OR side are designed. Secure the set value.
[0050]
In addition, in the motor idling region, without giving priority to one of the inner rotor IR and the outer row OR, each of them increases the leakage flux to increase the generator efficiency on the inner rotor IR side and the generator efficiency on the outer rotor OR side. .
[0051]
Next, effects will be described.
In the magnetic circuit control device of the multi-axis multilayer motor of the first embodiment, the following effects can be obtained.
[0052]
(1) An inner rotor IR and an outer rotor OR are arranged concentrically with a stator S interposed therebetween, and the stator S is a stator with a divided coil 42 in which a coil 42 is wound around a stator tooth 41 formed of a laminated steel plate. In the multi-axis multi-layer motor M in which the teeth 41 are arranged at equal pitches on the circumference around the motor rotation axis, of the divided stator teeth 41 with the coil 42, the adjacent stator teeth 41, 41 The magnetic circuit control means that controls the outer rotor side gap and the inner rotor side gap according to the operating conditions is provided.By controlling the magnetic circuit according to the operating conditions, the motor efficiency and motor performance can be comprehensively improved. Can be improved.
[0053]
(2) The magnetic circuit control means is disposed at a gap between the adjacent stator teeth 41 and 41 on the outer rotor side, and the outer rotor side movable portion driven by the outer rotor side actuator 19 and the adjacent stator teeth 41 and 41. Of the inner rotor side movable portion, which is disposed at the inner rotor side gap position and is driven by the inner rotor side actuator 20, and controls the amount of leakage magnetic flux to the stator teeth 41, 41 of the outer rotor side movable portion and the inner rotor side movable portion. Since it has a motor controller 21 that outputs a command to the outer rotor-side actuator 19 and the inner rotor-side actuator 20, the drive of the outer rotor-side movable portion and the inner rotor-side movable portion can be controlled easily, thereby facilitating the magnetic circuit. Variable control. Wear.
[0054]
(3) The motor controller 21 controls a movable part of the inner rotor IR and the outer rotor OR corresponding to a rotor having a large torque or input / output to a side where leakage magnetic flux is stopped, and supports a rotor having a small torque or input / output. To improve the motor performance by expanding the high-efficiency operating range as a whole by controlling the magnetic circuit that controls the movable part to the side where the leakage magnetic flux flows, by giving priority to the rotor with the larger torque and input / output. Can be.
[0055]
(4) In the normal operation region of the motor, the motor controller 21 sets the outer movable portion and the inner movable portion to the side for stopping the leakage magnetic flux, and in the motor idling region, connects the outer movable portion and the inner movable portion. Since the leakage magnetic flux flows, the two motor efficiencies can be ensured in the normal operation range and the generator efficiency can be improved in the idling range.
[0056]
(5) The outer rotor-side movable portion is an outer rotor-side sliding member 17 made of a highly permeable material, which is slidably disposed in the outer rotor-side gap between the adjacent stator teeth 41, 41 in the rotation axis direction. The inner rotor side movable portion is slidably disposed in the inner rotor side gap between the adjacent stator teeth 41, 41 in the rotation axis direction, and is the inner rotor side sliding member 18 made of a highly magnetically permeable material. By making the amount of overlap between the members 17 and 18 and the stator teeth 41 and 41 in the rotation axis direction variable, the amount of magnetic flux leakage from the stator teeth 41 and 41 can be controlled.
[0057]
(6) The outer rotor side sliding member 17 and the inner rotor side sliding member 18 have a groove fitting structure with respect to the stator teeth 41, 41, and a sliding resistance is provided at a contact position with the stator teeth 41, 41. Since the sliding contact portion 25 for reducing the frictional force is interposed, it is possible to restrict the movement other than the sliding direction to support the suction repulsive force in the radial direction due to the electromagnetic force, and to realize the sliding members 17, 18 and the stator teeth 41, It is possible to prevent the occurrence of iron loss due to the contact with 41 and reduce the sliding resistance.
[0058]
(Second embodiment)
In the second embodiment, an outer rotor side rotating member and an inner rotor side rotating member are applied as the outer rotor side movable portion and the inner rotor side movable portion.
[0059]
FIG. 14 is a control system diagram showing the magnetic circuit control device of the second embodiment, and FIG. 15 is a diagram showing the flow of leakage magnetic flux due to the positional relationship between the stator teeth and the high magnetic permeability portion of the magnetic circuit control device of the second embodiment. 14 is an enlarged view of a portion B, FIG. 16 is a view showing a link mechanism and an actuator for driving a rotating member of the magnetic circuit control device of the second embodiment, and FIG. 17 is a circuit diagram of one turn of the magnetic circuit control device of the second embodiment. FIG. 18 is an explanatory diagram of the operation of the moving member, FIG. 18 is an explanatory diagram of the interlocking operation of the rotating member of the magnetic circuit controller of the second embodiment, and FIG. 19 is an example 1 of the rotating member of the magnetic circuit controller of the second embodiment. FIG. 20 is a diagram showing a second example of the rotating member of the magnetic circuit control device according to the second embodiment.
[0060]
As shown in FIG. 14, the magnetic circuit control means of the second embodiment is disposed at an outer rotor side gap between adjacent stator teeth 41, 41 and is driven by an outer rotor side actuator 19 to form an outer rotor side rotating member. 27 (outer rotor side movable portion) and an inner rotor side rotating member 28 (inner rotor side movable portion) which is arranged at a gap position between the adjacent stator teeth 41 and 41 on the inner rotor side and is driven by the inner rotor side actuator 20. And a motor controller 21 (magnetic) that outputs a control command of the amount of magnetic flux leakage to the stator teeth 41 of the outer rotor side rotating member 27 and the inner rotor side rotating member 28 to the outer rotor side actuator 19 and the inner rotor side actuator 20. Circuit control unit) It has been.
[0061]
The outer rotor-side rotating member 27 is rotatably arranged around the rotation axis in the outer rotor-side gap between the adjacent stator teeth 41, 41, and has a high magnetic permeability portion 27b sandwiched between the gaps 27a on both sides. In the radial direction.
[0062]
The inner-rotor-side rotating member 28 is disposed so as to be rotatable around the rotation axis in an inner-rotor-side gap between the adjacent stator teeth 41, 41, and has a high magnetic permeability portion 28b sandwiched by gaps 28a, 28a on both sides. In the radial direction.
[0063]
The motor controller 21 controls the amount of leakage magnetic flux of the stator teeth 41, 41 by making the positional relationship between the high magnetic permeability portions 27b, 28b of the rotating members 27, 28 and the adjacent stator teeth 41, 41 variable. .
That is, as shown in FIG. 15A, the positional relationship between the high magnetic permeability portions 27b, 28b of the rotating members 27, 28 and the adjacent stator teeth 41, 41 is arranged in parallel, so that the leakage magnetic flux does not easily pass. Conversely, as shown in FIG. 15 (b), the positional relationship between the high magnetic permeability portions 27b, 28b of the rotating members 27, 28 and the adjacent stator teeth 41, 41 is orthogonally arranged so that the leakage is prevented. The magnetic flux is easy to pass through.
[0064]
The drive structure of the two rotating members 27 and 28 will be described with reference to FIGS. As shown in FIG. 16, the rotating member drive structure includes a guide pin 54 protruding in the direction of the motor rotation axis at the ends of both rotating members 27 and 28, and a pin hole 55a in which the guide pin 54 is fitted. , A driving gear 56 that meshes with a gear portion 55b of the movable slider plate 55, and actuators 19 and 20 by an electric motor provided with the driving gear 55.
[0065]
As shown in FIG. 17, when the movable slider plate 55 is moved by a predetermined stroke width, the positions of the high magnetic permeability portions 27b, 28b and the stator teeth 41, 41 are changed. The relationship can be changed between a parallel arrangement and an orthogonal arrangement.
[0066]
As shown in FIG. 18, the interlocking operation of the two rotating members 27 and 28 is such that the movable slider plate 55 is annularly arranged along the rotating members 27 and 28, and the annular movable slider plate 55 is connected to the drive gear 55. 18 (a), the positions of the high magnetic permeability portions 27b, 28b and the stator teeth 41, 41 are arranged in parallel, as shown in FIG. As shown in FIG. 18 (b), the state in which the positional relationship between the high magnetic permeability portions 27b, 28b and the stator teeth 41, 41 is orthogonally arranged can be simultaneously changed for the plurality of rotating members 27, 28. .
[0067]
As shown in FIGS. 19 and 20, the outer rotor-side rotating member 27 and the inner rotor-side rotating member 28 have gaps 27a and 28a made of resin or the like on both sides, and a high magnetic permeability part made of a laminated silicon steel plate or the like. 27b and 28b have a concave-convex fitting structure, and rotating contact portions 27c and 28c made of resin or the like for reducing the rotating resistance are interposed at the contact positions with the stator teeth 41 and 41. FIGS. 19A and 20 show a state in which the rotating contact portions 27c and 28c have been removed. Since the other configuration is the same as that of the first embodiment, illustration and description are omitted.
[0068]
Regarding the operation, the state in which the positional relationship between the high magnetic permeability portions 27b, 28b and the stator teeth 41, 41 in the second embodiment is arranged in parallel is the sliding members 17, 18 and the stator teeth 41, 41 in the first embodiment. The sliding member according to the first embodiment corresponds to a state where the overlap with the sliding member 41 is small, and the positional relationship between the high magnetic permeability portions 27b and 28b and the stator teeth 41 and 41 in the second embodiment is orthogonal. This corresponds to a state in which the overlap between the stator teeth 17 and 18 and the stator teeth 41 and 41 is large. The other operation is the same as that of the first embodiment, and the description is omitted.
[0069]
Next, effects will be described.
The magnetic circuit controller for a multi-axis multilayer motor according to the second embodiment obtains the following effects in addition to the effects (1), (2), (3) and (4) of the first embodiment. Can be.
[0070]
(7) The outer rotor-side movable portion is disposed so as to be rotatable around the rotation axis in the outer rotor-side gap between the adjacent stator teeth 41, 41, and has a high magnetic permeability portion sandwiched by the gaps 27a, 27a on both sides. An outer rotor-side rotating member 27 having a radial direction 27b, wherein the inner rotor-side movable portion is disposed so as to be rotatable around a rotation axis in an inner rotor-side gap between adjacent stator teeth 41, 41. Since the inner rotor side rotating member 28 has a high magnetic permeability portion 28b in the radial direction sandwiched by the air gap portions 28a, 28a, the stator teeth 41 adjacent to the high magnetic permeability portions 27b, 28b of the rotating members 27, 28 The amount of magnetic flux leakage from the stator teeth 41, 41 can be controlled by changing the positional relationship with the stator teeth 41.
[0071]
(8) The outer rotor-side rotating member 27 and the inner rotor-side rotating member 28 are configured such that the gaps 27a, 28a and the high magnetic permeability portions 27b, 28b on both sides have an uneven fitting structure, and the stator teeth 41, Since the rotation contact portions 27c and 28c for reducing the rotation resistance are interposed at the contact position with the contact 41, the integral fixation of the gap portions 27a and 28a and the high magnetic permeability portions 27b and 28b can be improved, and the sliding can be performed. Iron loss due to contact between the moving members 17, 18 and the stator teeth 41, 41 can be prevented and sliding resistance can be reduced.
[0072]
(Third embodiment)
The third embodiment is an example in which electromagnets (auxiliary magnetic poles) are arranged in gaps between adjacent stator teeth instead of the outer rotor side movable portion and the inner rotor side movable portion of the first and second embodiments.
[0073]
FIG. 21 is a diagram showing a magnetic circuit control device of the third embodiment, and FIG. 22 is a block diagram showing a magnetic circuit control system of the third embodiment.
[0074]
As shown in FIG. 21, the magnetic circuit control means of the third embodiment is disposed at a gap between the adjacent stator teeth 41, 41 on the outer rotor side, and the leakage magnetic flux generated near the inner and outer peripheral portions of the stator teeth 41, 41. The outer rotor-side electromagnet 57 (outer rotor-side auxiliary magnetic pole) that guides the outer rotor and the adjacent stator teeth 41, 41 is disposed at a gap position between the inner rotor and the adjacent stator teeth 41, 41. It has an inner-rotor-side electromagnet 58 (inner-rotor-side auxiliary magnetic pole) to guide, and a motor controller 21 (magnetic circuit control means) for controlling the flow of magnetic flux to the outer-rotor-side electromagnet 57 and the inner-rotor-side electromagnet 58. It is composed.
[0075]
The two electromagnets 57 and 58 are each formed by winding a bypass coil around a laminated steel plate around a rotor tangential direction as an axis. The motor controller 21 controls the bypass coils of the electromagnets 57 and 58 via bypass coil driving circuits 59a and 59b. The control of the magnetic flux is performed according to whether or not the AC current is supplied to the bypass coil and the direction of the AC current application to the bypass coil.
[0076]
As shown in FIG. 22, when the inner torque is larger than the outer torque, the motor controller 21 controls the outer rotor-side electromagnet 57 to flow a bypass coil current in a direction determined according to an input / output relationship. When the outer torque is larger than the inner torque, the magnetic flux is controlled to flow through the bypass coil to the inner rotor-side electromagnet 58 in a direction determined according to the input / output relationship, and the outer torque and the inner torque are the same. At this time, control for stopping the magnetic flux via both electromagnets 57 and 58 is performed.
[0077]
Here, the sign of + in FIG. 22 indicates that the magnetic flux flows from left to right on the outer rotor side electromagnet 57 side as viewed from the front, and the inner rotor side as viewed from the front as shown in FIG. On the electromagnet 58 side, a flow of magnetic flux is formed from right to left, and the sign of-in FIG. Since the other configuration is the same as that of the first embodiment, illustration and description are omitted.
[0078]
Next, the operation will be described.
[0079]
[Magnetic circuit control action]
FIG. 23 is a flowchart showing the flow of the magnetic circuit control operation in the magnetic circuit control device of the third embodiment. Hereinafter, each step will be described.
[0080]
In step 23a, the inner current command value is read, and in the next step 23b, the inner torque is estimated. Similarly, in step 23c, the outer current command value is read, and in the next step 23d, the outer torque is estimated.
[0081]
When the outer torque and the inner torque are obtained in steps 23b and 23d, the difference between the inner torque and the outer torque is obtained in the next step 23e.
[0082]
In the comparison of step 23e, if inner torque> outer torque, the process proceeds from step 23f to step 23g. In step 23g, an alternating current is passed through the bypass coil of the outer rotor side electromagnet 57.
[0083]
When the inner torque is smaller than the outer torque in the comparison of step 23e, the process proceeds from step 23h to step 23i. In step 23i, an alternating current is passed through the bypass coil of the inner rotor-side electromagnet 58.
[0084]
If the inner torque is equal to the outer torque in the comparison in step 23e, the process proceeds from step 23j to step 23k. In step 23k, no AC current is supplied to the bypass coils of both electromagnets 57 and 58.
[0085]
FIG. 24 is an explanatory diagram showing the flow of magnetic flux by magnetic circuit control in the magnetic circuit control device of the third embodiment. If the inner torque is greater than the outer torque, the flow proceeds to step 23e → step 23f → step 23g in the flowchart of FIG. 23. In step 23g, an alternating current is passed through the bypass coil of the outer rotor side electromagnet 57. Therefore, when the inner rotor IR rotates in one direction, an annular magnetic flux for driving the inner rotor IR is formed as shown in FIG. 24A, and when the inner rotor IR rotates in the other direction, as shown in FIG. As shown in FIG. 24 (2), an annular magnetic flux for driving the inner rotor IR is formed, and the motor efficiency when the inner torque is larger than the outer torque is increased.
[0086]
When the inner torque is smaller than the outer torque, the flow proceeds to step 23e → step 23h → step 23i in the flowchart of FIG. 23. In step 23i, an alternating current is passed through the bypass coil of the inner rotor side electromagnet 58. Therefore, when the outer rotor OR rotates in one direction, an annular magnetic flux for driving the outer rotor OR is formed as shown in FIG. 24C, and when the outer rotor OR rotates in the other direction, as shown in FIG. As shown in FIG. 24 (4), an annular magnetic flux for driving the outer rotor OR is formed, and the motor efficiency when the outer torque is larger than the inner torque is increased.
[0087]
When the inner torque is equal to the outer torque, the flow proceeds to step 23e → step 23j → step 23k in the flowchart of FIG. 23. In step 23k, no AC current is passed through the bypass coils of both electromagnets 57 and 58. Therefore, when the inner rotor IR and the outer rotor OR rotate, the motor efficiency at the time of design is ensured in a compromise manner. The other operation is the same as that of the first embodiment, and the description is omitted.
[0088]
Next, effects will be described.
In the magnetic circuit control device for a multi-axis multilayer motor according to the third embodiment, the following effect can be obtained in addition to the effect (1) of the first embodiment.
[0089]
(9) The magnetic circuit control means is disposed at a gap position between the adjacent stator teeth 41 and 41 on the outer rotor side, and induces a leakage magnetic flux generated near the inner and outer peripheral portions of the stator teeth 41 and 41. An inner rotor-side auxiliary magnetic pole, which is disposed at a gap position between the adjacent stator teeth 41 and 41 on the inner rotor side and induces a leakage magnetic flux generated near the inner and outer peripheral portions of the stator teeth 41 and 41; And the motor controller 21 that controls the flow of magnetic flux to the inner rotor-side auxiliary magnetic pole, so that the magnetic circuit can be easily variably controlled by controlling the outer rotor-side auxiliary magnetic pole and the inner rotor-side auxiliary magnetic pole. be able to.
[0090]
(10) When the inner torque is larger than the outer torque, the magnetic circuit control means controls the flow of magnetic flux through the outer rotor-side auxiliary magnetic pole, and when the outer torque is larger than the inner torque, the magnetic circuit control means controls the inner rotor-side auxiliary magnetic pole. When the outer torque and the inner torque are the same, the control to stop the magnetic flux through both auxiliary magnetic poles is performed, so the change control of the magnetic circuit that gives priority to the rotor with the larger torque As a whole, the high-efficiency operation range can be expanded and the motor characteristics can be improved.
[0091]
(11) The outer rotor side auxiliary magnetic pole and the inner rotor side auxiliary magnetic pole are the outer rotor side electromagnet 57 and the inner rotor side electromagnet 58 in which a bypass coil is wound around a laminated steel sheet with the rotor tangential direction as an axis. Without using an actuator as in the second embodiment, it is possible to easily control the magnetic flux by passing or not passing an alternating current to the bypass coils of both electromagnets 57 and 58.
[0092]
(Fourth embodiment)
The fourth embodiment is basically the same as the third embodiment, except that an outer rotor-side permanent magnet 77 and an inner rotor-side permanent magnet 78 are used.
[0093]
That is, as shown in FIG. 25, the outer rotor-side permanent magnets 77 (outer rotor-side auxiliary magnetic poles) and the inner rotor-side permanent magnets 78 (inner rotor-side auxiliary magnetic poles) are arranged between the adjacent stator teeth 41, 41. are doing. The outer rotor-side permanent magnet 77 and the inner rotor-side permanent stone 78 are driven by, for example, a rotating mechanism as described in the second embodiment. Since the other configuration is the same as that of the third embodiment, illustration and description are omitted. The operation is the same as that of the second embodiment, and the description is omitted.
[0094]
Next, effects will be described.
In the magnetic circuit control device for a multi-axis multilayer motor according to the fourth embodiment, the following effects can be obtained in addition to the effects (9) and (10) of the third embodiment.
[0095]
(12) Since the outer rotor side auxiliary magnetic pole and the inner rotor side auxiliary magnetic pole are the outer rotor side permanent magnet 77 and the inner rotor side permanent magnet 78 provided rotatably, the permanent magnets 77, 78 are rotated. This makes it possible to easily control the magnetic flux.
[0096]
As described above, the magnetic circuit control device of the multi-axis multilayer motor according to the present invention has been described based on the first to fourth embodiments. However, the specific configuration is not limited to these embodiments. Changes and additions to the design are permitted without departing from the spirit of the invention according to each claim of the claims.
[0097]
For example, in the first embodiment, the example of the multi-axis multi-layer motor applied to the hybrid drive unit has been described. The magnetic circuit control device of the present invention can also be adopted.
[0098]
In the first to fourth embodiments, the example of the magnetic circuit control means for controlling the outer rotor-side gap and the inner rotor-side gap of the adjacent stator teeth according to the operating condition has been described. It is also possible to control only one of the outer rotor side gap and the inner rotor side gap. Further, as the magnetic circuit control means, any means other than the means shown in the first to fourth embodiments may be employed as long as the control is performed so as to change the flow of the magnetic flux of the divided stator teeth. Is also good.
[Brief description of the drawings]
FIG. 1 is a schematic overall view showing a hybrid drive unit to which a multi-axis multilayer motor having a magnetic circuit control device according to a first embodiment is applied.
FIG. 2 is a vertical sectional side view showing a hybrid transmission of a hybrid drive unit to which the multi-shaft multilayer motor of the first embodiment is applied.
FIG. 3 is a vertical sectional side view showing a multi-axis multilayer motor M to which the magnetic circuit control device of the first embodiment is applied.
FIG. 4 is a partially longitudinal front view showing a multi-axis multilayer motor M to which the magnetic circuit control device of the first embodiment is applied.
FIG. 5 is a view of a multi-axis multilayer motor M to which the magnetic circuit control device of the first embodiment is applied, viewed from the back side of a stator.
FIG. 6 is an explanatory diagram showing an example of a composite current applied to a stator coil of a multi-axis multilayer motor.
FIG. 7 is a control system diagram showing the magnetic circuit control device of the first embodiment.
FIG. 8 is an enlarged view of a portion A in FIG. 7 showing a flow of a leakage magnetic flux depending on a positional relationship between a stator tooth and a sliding member of the magnetic circuit control device of the first embodiment.
FIG. 9 is a diagram showing a cable mechanism and an actuator for driving a sliding member of the magnetic circuit control device of the first embodiment.
FIG. 10 is a diagram showing a first example of a stator tooth and a sliding member of the magnetic circuit control device of the first embodiment.
FIG. 11 is a diagram illustrating a second example of the stator teeth and the sliding members of the magnetic circuit control device according to the first embodiment.
FIG. 12 is a diagram showing a magnetic flux for driving the outer rotor and a magnetic flux for driving the inner rotor in a design stage on the premise of a leakage magnetic path.
FIG. 13 is a diagram illustrating a movable part control law with respect to operating conditions in the magnetic circuit control device of the first embodiment.
FIG. 14 is a control system diagram showing a magnetic circuit control device according to a second embodiment.
FIG. 15 is an enlarged view of a portion B in FIG. 14 showing a flow of a leakage magnetic flux depending on a positional relationship between a stator tooth and a high magnetic permeability portion of the magnetic circuit control device of the second embodiment.
FIG. 16 is a diagram showing a link mechanism and an actuator for driving a rotating member of the magnetic circuit control device according to the second embodiment.
FIG. 17 is a diagram illustrating the operation of one rotating member of the magnetic circuit control device according to the second embodiment.
FIG. 18 is an explanatory diagram of the interlocking operation of the rotating member of the magnetic circuit control device according to the second embodiment.
FIG. 19 is a diagram illustrating a first example of the rotating member of the magnetic circuit control device according to the second embodiment;
FIG. 20 is a diagram illustrating a second example of the rotating member of the magnetic circuit control device according to the second embodiment;
FIG. 21 is a diagram illustrating a magnetic circuit control device according to a third embodiment.
FIG. 22 is a block diagram illustrating a magnetic circuit control system according to a third embodiment.
FIG. 23 is a flowchart showing a flow of a magnetic circuit control operation in the magnetic circuit control device of the third embodiment.
FIG. 24 is an explanatory diagram showing a flow of magnetic flux by magnetic circuit control in the magnetic circuit control device of the third embodiment.
FIG. 25 is a diagram illustrating a magnetic circuit control device according to a fourth embodiment.
[Explanation of symbols]
M multi-axis multi-layer motor
S stator
IR inner rotor
OR Outer rotor
41 Stator teeth
42 coils
17 Outer rotor side sliding member (outer rotor side movable part)
18 Inner rotor side sliding member (inner rotor side movable part)
19 Outer rotor side actuator
20 Inner rotor side actuator
21 Motor controller (magnetic circuit controller)
22 Hybrid controller
23 Sliding guide
24 Operation cable
25 Sliding contact
27 Outer rotor side rotating member (outer rotor side movable part)
27a void
27b High permeability part
27c Rotating contact part
28 Inner rotor side rotating member (inner rotor side movable part)
28a void
28b High permeability part
28c Rotating contact part
57 Outer rotor side electromagnet (outer rotor side auxiliary magnetic pole)
58 Inner rotor side electromagnet (Inner rotor side auxiliary magnetic pole)
77 Permanent magnet on outer rotor side (auxiliary magnetic pole on outer rotor side)
78 Permanent magnet on inner rotor side (auxiliary magnetic pole on inner rotor side)

Claims (12)

The inner rotor and the outer rotor are arranged concentrically across the stator,
The stator is a multi-axis multilayer motor in which split stator teeth with coils obtained by winding coils around stator teeth formed of laminated steel sheets are arranged at equal pitches on a circumference around the motor rotation axis.
A magnetic circuit control means for controlling at least one of the outer rotor-side gap and the inner rotor-side gap of the adjacent stator teeth among the divided stator teeth with coils is provided in accordance with an operating condition. Circuit controller for multi-axis multi-layer motor. The magnetic circuit control device for a multi-axis multilayer motor according to claim 1,
The magnetic circuit control means,
An outer rotor-side movable portion that is arranged at an outer rotor-side gap position of an adjacent stator tooth and is driven by an outer rotor-side actuator;
An inner rotor-side movable portion that is arranged at an inner rotor-side gap position of an adjacent stator tooth and is driven by an inner rotor-side actuator;
A magnetic circuit control unit that outputs a control command of a leakage magnetic flux amount to a stator tooth of the outer rotor-side movable unit and the inner rotor-side movable unit to the outer rotor-side actuator and the inner rotor-side actuator,
A magnetic circuit control device for a multi-axis multilayer motor, comprising: The magnetic circuit control device for a multi-axis multilayer motor according to claim 2,
The magnetic circuit control unit, of the inner rotor and the outer rotor, controls the movable part corresponding to the rotor with large torque or input / output to the side where the leakage magnetic flux is stopped, and sets the movable part corresponding to the rotor with small torque or input / output. A magnetic circuit control device for a multi-axis multilayer motor, wherein the magnetic circuit control device controls the leakage magnetic flux. A magnetic circuit controller for a multi-axis multilayer motor according to claim 2 or 3,
In the normal operation range of the motor, the magnetic circuit control section sets the outer side movable section and the inner side movable section to a side for stopping leakage magnetic flux, and in the motor idling area, the outer side movable section and the inner side movable section A magnetic circuit control device for a multi-axis multi-layer motor, characterized in that it is a flow side. A magnetic circuit controller for a multi-axis multilayer motor according to any one of claims 2 to 4,
The outer rotor-side movable portion is disposed so as to be slidable in the rotation axis direction in an outer rotor-side gap between adjacent stator teeth, and is an outer rotor-side sliding member made of a highly permeable material.
The multi-axial multilayer structure, wherein the inner rotor-side movable portion is an inner rotor-side sliding member made of a highly permeable material, which is slidably disposed in the inner rotor-side gap between adjacent stator teeth in the rotation axis direction. Motor magnetic circuit controller. The magnetic circuit control device for a multi-axis multilayer motor according to claim 5,
The outer rotor side sliding member and the inner rotor side sliding member have a groove fitting structure with respect to the stator teeth, and a sliding contact portion for reducing sliding resistance is interposed at a contact position with the stator teeth. A magnetic circuit control device for a multi-axis multilayer motor, characterized in that: A magnetic circuit controller for a multi-axis multilayer motor according to any one of claims 2 to 4,
The outer rotor-side movable portion is disposed rotatably around a rotation axis in an outer rotor-side gap of an adjacent stator tooth, and has an outer rotor side rotation portion having a high magnetic permeability portion sandwiched by gaps on both sides in a radial direction. Moving member,
The inner rotor-side movable portion is disposed rotatably around the rotation axis in an inner rotor-side gap of an adjacent stator tooth, and has a high magnetic permeability portion sandwiched by gaps on both sides in a radial direction. A magnetic circuit control device for a multi-axis multilayer motor, being a moving member. The magnetic circuit control device for a multi-axis multilayer motor according to claim 7,
The outer rotor-side rotating member and the inner rotor-side rotating member have a concave-convex fitting structure between the gaps on both sides and the high magnetic permeability portion, and reduce the rotational resistance at the contact position with the stator teeth. A magnetic circuit control device for a multi-axis multilayer motor, characterized by interposing a contact portion. The magnetic circuit control device for a multi-axis multilayer motor according to claim 1,
The magnetic circuit control means,
An outer rotor-side auxiliary magnetic pole that is disposed at an outer rotor-side gap position of an adjacent stator tooth and induces a leakage magnetic flux generated near the inner and outer peripheral portions of the stator tooth;
An inner rotor-side auxiliary magnetic pole that is disposed at an inner rotor-side gap position of an adjacent stator tooth and induces a leakage magnetic flux generated near the inner and outer peripheral portions of the stator tooth;
A magnetic circuit control unit that controls the flow of magnetic flux to the outer rotor-side auxiliary magnetic pole and the inner rotor-side auxiliary magnetic pole,
A magnetic circuit control device for a multi-axis multilayer motor, comprising: The magnetic circuit control device for a multi-axis multilayer motor according to claim 9,
When the inner torque is larger than the outer torque, the magnetic circuit control unit controls the flow of the magnetic flux through the outer rotor-side auxiliary magnetic pole.When the outer torque is larger than the inner torque, the magnetic circuit controller controls the magnetic flux through the inner rotor-side auxiliary magnetic pole. A magnetic circuit control device for a multi-axis multilayer motor, comprising: performing a flow control; and performing a control to stop a magnetic flux via both auxiliary magnetic poles when an outer torque and an inner torque are the same. The magnetic circuit control device for a multi-axis multilayer motor according to claim 9 or 10,
The magnetic circuit control device for a multi-axis multilayer motor, wherein the outer rotor-side auxiliary magnetic pole and the inner rotor-side auxiliary magnetic pole are electromagnets each formed by winding a bypass coil around a laminated steel plate around a rotor tangential direction. The magnetic circuit control device for a multi-axis multilayer motor according to claim 9 or 10,
The magnetic circuit control device for a multi-axis multilayer motor, wherein the outer rotor side auxiliary magnetic pole and the inner rotor side auxiliary magnetic pole are rotatable permanent magnets.

Images